The horizontal continuous casting process is the first step in the production of TP2 copper tubes,and the process is cumber-some.The quality of the cast billet directly determines the quality of the final product.In the actual production process,the mold is in a closed state,and the change rule of the primary cooling water inside the copper sleeve cannot be directly observed.To explore the change of the flow velocity of the primary cooling water in the waterway and its influence on the temperature field on the outer surface of the copper sleeve,numerical analysis was adopted to establish a finite element steady-state model of the mold.The BSL k-omega tur-bulence model was used to solve the problem,simulating the flow field and temperature field inside the copper sleeve under different in-let flow rates and differential water flow rates.The flow velocity variation curve of the primary cooling water in the waterway and the steady-state temperature curve at the midline of the outer surface of the copper sleeve were plotted.The results show that when the pouring temperature is 1165℃,the hauling speed is 382 mm/min,and the inlet water temperature is 32℃,with the same upper and lower inlet flow rates,the flow velocity at the water gap increases by an average of 1.75 m/s for every 4 L/min increase in inlet flow rate,and the temperature at 0.23 m from the midline of the outer surface of the copper sleeve decreases by an average of 5.7℃.When there is a difference in the upper and lower inlet flow rates and under the influence of gravity,the flow velocity of the primary cooling water in the lower half increases by an average of 0.32 m/s for every 4 L/min increase in flow rate difference,and the temperature at 0.23 m from the midline of the outer surface of the copper sleeve decreases by an average of 6.5℃.A flow rate difference of 3 L/min can alleviate the insufficient cooling intensity in the lower half.
horizontal continuous castingTP2 copper tube billetgraphite moldprimary water coolingnumerical simulation
维普
万方数据
